WO2010117151A9

WO2010117151A9 - Multidirectional bendable hand grinder

Info

Publication number: WO2010117151A9
Application number: PCT/KR2010/001829
Authority: WO
Inventors: 김기영
Original assignee: Kim Ki Young
Priority date: 2009-04-06
Filing date: 2010-03-25
Publication date: 2010-12-23
Also published as: KR101105026B1; WO2010117151A3; KR20100110924A; WO2010117151A2; WO2010117151A4

Abstract

The present invention relates to a hand grinder, and more particularly, to a multidirectional bendable hand grinder which can freely switch the power transmission direction in a refractive manner in order to establish various workpiece surface machining directions, and in which the extension and twisting action of the length of a grinder body enable grinding work to be easily performed on the inner surface of the workpiece. The hand grinder according to the present invention comprises: a power device for rotating a machining member mounted at the front end thereof to machine the workpiece; a control module which controls the power device to control the rotation direction and the number of rotations of the machining member; a first joint and a second joint which switch the advancing direction of the power device to vary the machining angle of the workpiece; a first body which accommodates a portion of the power device, and which adjusts the gap between the first joint and the second joint and the angle of the machining member; a second body which accommodates another portion of the power device, and which enables a worker to hold the second body by the hand thereof; and a gripping body which is assembled at the outer surface of the first body, and which enables the other hand of the worker to hold the gripping body at a free angle and position.

Description

Multi-directional articulated hand grinder

The present invention relates to a hand grinder, and more particularly, it is possible to freely switch the direction of power transmission to a radial refracting type to set the processing direction of the workpiece surface in a variety of ways, while extending and twisting the length of the grinder body. The multi-directional articulated hand grinder which facilitates the grinding operation of the inner surface of the present invention.

Hand-grinder (Portable electric grinder) refers to a power tool that rotates a grinding stone, and can be shaped (grinded) while cutting the surface of a material. It can be used for multipurpose purposes.

In addition, after replacing the grinding wheel with a wire brush on the spindle rotated by the driving of the motor, the oxide film adhered to the welded part is cleaned, or dust or It is not limited to any field and exhibits various functionalities, such as the use of surface treatment of bonded parts for removing rust or paint, paint and varnish.

In particular, in the field of woodworking, circular saws, sunflower sandpaper, etc. are mounted on the spindle of the hand grinder, and are utilized for work such as surface finishing (cutting) or digging (hole processing) of crafts. .

However, when using the existing hand grinder, the machining work is possible only if the operator twists his wrist to change the approach direction of the hand grinder for the vertical inclined curved surface of the workpiece. Therefore, due to the fact that its utilization is not only lowered, but also in the uncomfortable posture and the processing member such as a circular saw is closely assembled to the hand grinder, there are frequent occurrences of safety accidents in which an operator may be injured.

In order to solve this problem to some extent, through the domestic registered patent No. 10-0800046, a woodworking belt cutter for allowing easy mounting on the hand grinder is disclosed.

Woodworking belt cutter according to the prior art, the drive shaft 910 is protruded to the front end of the hand grinder 800 is rotated by receiving the driving force of the drive motor, and the drive pulley detachably mounted to the end of the drive shaft 910. 920, a cutting body 930 assembled to the front end of the hand grinder 800, a driven pulley 940 mounted to the front end of the cutting body 930, the driving pulley 920 and a driven pulley. It comprises a belt 950 for dynamically connecting the 940, and a cutting blade 960 mounted to the driven shaft tip of the driven pulley 940.

According to the prior art, the drive motor built in the hand grinder 800 is driven by the supply of external power, and the driving force is driven by the drive shaft 910, the drive pulley 920, the belt 950, and the driven pulley 940. ) And driven shaft 950 to the cutting edge 960 by the rotational operation as it is possible to cut and trim the wood. At this time, by rotating the cutting body 930 from the front end of the hand grinder 800, the woodworking work can be performed while changing the position of the cutting blade 960.

However, the drive shaft 910, the drive pulley 920, the driven pulley 930, and the belt 950, which are components that transmit the rotational driving force generated from the drive motor of the hand grinder 800, to the cutting blade 960. Bar is exposed to the outside as it is difficult to prevent the flow of the cutting body 930 due to the shock vibration during the workpiece processing is impossible to secure work safety and the flow of the cutting body 930 the belt 950 and the workpiece When rubbing, the cutting edge 960 interferes with the normal operation of the rotation, or severely, the end of the belt 950 is broken.

In addition, foreign matters such as sawdust generated during the surface processing of the workpiece by the cutting blade 960 cannot prevent penetration between the driving pulley 910, the driven pulley 940, and the belt 950. Causes

In addition, the direction of the body 930 may be simply changed from the tip of the hand grinder 800, and the angle of the cutting blade 960 may be changed and the distance between the hand grinder 800 and the cutting blade 960 may be spaced apart from each other. The inability to extend the gap has been limited to the smoothing and digging of workpieces.

An object of the present invention is to solve the above-mentioned problems, while elongating the body length (extension) while being able to variously transform the traveling direction and the processing angle of various processing members such as grinding wheels or circular saws. The present invention provides a multi-directional articulated hand grinder that is capable of performing various machining operations of a workpiece by adjusting the twisting and rotating structure.

Another object of the present invention, the drive system of the power unit is made of a meshed linkage operation structure of the gear, not the belt rotation method, multi-directional articulated hand grinder to increase the power transmission power and maximize the durability of the product In providing.

Still another object of the present invention is to provide a gripper which is further assembled and mounted to the outside of the body, and which can be fixedly maintained at 360 ° rotation and forward and backward movement, so that an optimal working posture and a grinder's resonance are achieved. An object of the present invention is to provide a multi-directional articulated hand grinder that enables precision machining through suppression.

In order to achieve the above object, the multi-directional articulated hand grinder according to the present invention includes a power unit for rotational driving of a machining member mounted at one end of the workpiece for the purpose of workpiece processing; A control module configured to control rotation of the processing member and control the number of rotations by controlling the power unit; A first joint body and a second joint body for varying the machining angle of the workpiece by changing the moving direction of the power unit; A first body configured to adjust an interval between the first and second joint bodies and an angle of the processing member together with an internal assembly of a part of the power unit; A second body for internally accommodating another part of the power unit and allowing an operator to grab it by hand; And a gripping body capable of freely setting a holding angle and a position of the other hand in an assembled state on the outside of the first body.

As is clear from the above description, the multi-directional articulated hand grinder according to the present invention is capable of freely extending and rotating the body within a certain range while processing the workpiece while being coupled to the tip of the body. By freely changing the moving direction, it is possible to shorten the working time and improve the work efficiency by performing horizontal and vertical curved processing of the workpiece surface and variously and easily drilling the inner surface.

In addition, the power unit for driving the rotation by receiving power from the drive motor is inherently accommodated and assembled in the body, thereby preventing the occurrence of safety accidents, and also prevents the failure of the grinder due to the adsorption of foreign matter. Exert.

In addition, by achieving the grinder grip shape of the operator only by the front and rear movement and 360 ° rotated from the outside of the body, according to the shape of the workpiece, without having to take the uncomfortable posture that had to twist the wrist and arms of the worker in various angles and multiple directions It is a very useful invention that can achieve the processing of the workpiece and at the same time, to alleviate the vibration of the grinder caused by the impact during the machining operation, to enable a more sophisticated work process.

1 is a perspective view showing the configuration of the belt cutter for woodwork according to the prior art.

Figure 2 is a perspective view showing the external structure of the multi-directional articulated hand grinder according to the present invention.

3 and 4 are cutaway perspective view and side cross-sectional view showing the internal configuration of the multi-directional articulated hand grinder according to the present invention.

Figure 5 is an enlarged cross-sectional view showing the main portion showing the configuration of the first joint in the multi-directional articulated hand grinder according to the present invention.

Figure 6 is a partial partial perspective view showing the coupling relationship of the second joint in the multi-directional articulated hand grinder according to the present invention.

7 is a perspective view showing the configuration of the power unit in the multi-directional articulated hand grinder according to the present invention.

8 is a main cutaway cross-sectional view showing an extended state of the multi-directional articulated hand grinder according to the present invention.

[Correction under Rule 91 13.05.2010]
9 to 15 is a working example showing the refractive relationship of the multi-directional refractive hand grinder according to the present invention.

[Correction under Rule 91 13.05.2010]
16 to 19 is an operational state diagram showing the refractive state of the multi-directional articulated hand grinder according to the present invention.

[Correction under Rule 91 13.05.2010]
20 is a side view showing another embodiment of the multidirectional articulated hand grinder according to the present invention.

[Correction under Rule 91 13.05.2010]
Figure 21 is a main cutaway cross-sectional view showing another configuration of the multi-directional articulated hand grinder according to the present invention.

*** Explanation of symbols for the main parts of the drawing ***

A: hand grinder, 1: power unit

2: control module, 3: first joint

4: second joint body, 5: first body

6: second body, 7: gripping body

11: drive motor, 12: drive shaft

12a: fitting hole, 13: the first link gear

14: interlock shaft, 15: extension shaft

15a: insertion hole, 16: second link gear

17: spindle, 21: power switch

22: changeover switch, 23: jog shuttle

31: 1st hinge bracket, 32, 42: guide block

32a, 42a: first shaft hole, 32b, 42b: second spring receiving groove

33: first hinge shaft, 34, 44: elastic spring

41: 2nd hinge bracket, 43: 2nd hinge shaft

51: holding pipe, 52: casing pipe

53: first protective cover, 54: second protective cover

61: holding case, 62: case cap

71: handle, 72: retaining ring

111: motor shaft, 121: super-gear gear

141: interlocking gear, 142: extension shaft

151: driven gear, 171: rotating gear

311, 411: Horizontal stage, 311-1, 411-1: Female gear

311a, 411a: block filling hole, 311a-1, 411a-1: first spring receiving groove

511: reduced outer diameter, 511a: limited circumferential groove

512: first hinge reference piece, 512-1, 522-1: male gear

512a, 522a: second shaft hole, 521: expanded inner diameter

521-1: Stopping frames, 522: Second hinge standard

523: Wrench Bolt, 531, 541: Upper Cap

531-1, 532-1: first guide rail, 541-1, 542-1: second guide rail

532, 542: lower cap, 531a, 532a: first incision

541a, 542a: second incision, 533, 543: shield band

533a, 543a: through hole, 711: locking screw

721: buffer pad

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings such that those skilled in the art may easily implement the present invention.

[Correction under Rule 91 13.05.2010]
Figure 2 is a perspective view showing the external structure of the multi-directional articulated hand grinder according to the present invention, Figures 3 and 4 are cutaway perspective view showing the internal configuration of the multi-directional articulated hand grinder according to the present invention Fig. 5 is an enlarged cross-sectional view showing main parts of the multi-directional articulated hand grinder according to the present invention, showing the constitutive relationship of the first joint body, and Fig. 6 is the multidirectional articulated hand grinder according to the present invention. Fig. 7 is a perspective view showing the coupling relationship between two joints, Fig. 7 is a perspective view showing the configuration of the power unit in the multi-directional articulated hand grinder according to the present invention, Fig. 8 is a multi-directional articulated type according to the present invention. Fig. 9 is a sectional view showing the stretched state of the hand grinder. 16 to 19 is an operational state diagram showing the refractive state of the multi-directional articulated hand grinder according to the present invention, Figure 20 is a side view showing another embodiment of the multi-directional articulated hand grinder according to the present invention, Figure 21 is Fig. 1 is a main cutaway sectional view showing another configuration of the multi-directional articulated hand grinder according to the present invention.

As shown in Figures 2 and 3, the multi-directional articulated hand grinder (A) according to the present invention, the power unit (1) for the rotational drive of the machining member mounted on one side for the purpose of workpiece processing, and By controlling the power unit 1, the control module 2, which is capable of adjusting the rotational direction of the processing member and its rotational speed (rpm), and processing of the workpiece by changing the traveling direction of the power unit 1 The gap between the first and second joint bodies 3 and the first joint body 3 and the second joint body 4 for varying the angle, together with the internal assembly of a part of the power unit 1, and the machining A first body 5 capable of adjusting the angle of the member, a second body 6 for allowing the operator to grab it by hand while internally accommodating another part of the

power unit

1, and 1 Freely setting the holding angle and position of the other hand in the assembled state on the outside of the body (5) It consists of one holding body 7.

The power unit 1 is for rotating operation of various processing members (g), such as conventional grinding wheels, circular saws or sunflower sandpaper, etc., used for processing a workpiece, and as shown in FIG. Drive motor 11 having a motor shaft 111, and the drive shaft 12 is driven at the same time because the motor shaft 111 is assembled in one end and the first gear 121 is shaft coupled to the other end and And a plurality of first link gears 13 connected and rotated in engagement with upper and lower portions of the first transmission gear 121 so as to form an intersecting axis with the driving shaft 12 and the driving shaft 12. An interlocking shaft 14 extending along an axis and interlocked with an interlocking gear 141 interlocked with the first link gears 13 at one end, and the other of the interlocking shaft 14; Single shaft extended in length by tip and end joint assembly The extension shaft 15, which is coupled to the interlocking gear 141 and the driven gear 151 of the same type as the other end of the pair, is formed in the same shape and arrangement as that of the first link gear 13. A plurality of second link gears 16 which are interlocked with the extension shaft 15 by being engaged with the driven gear 151 and the second link gears 13 in the same arrangement as the interlocking gear 141. The rotary gear 171 which is linked and rotated in simultaneous engagement with the shaft is coupled to one end, and the other end is exposed to the outside of the first body 5 to assemble and mount the processing member g. It consists of the spindle 17.

On the other hand, it is preferable that the fitting hole 12a into which the motor shaft 111 of the driving motor 11 is inserted is formed at one end of the driving shaft 12.

An extension shaft 142 of a predetermined length is further extended at one end of the linkage shaft 14, and an insertion hole 15a for accommodating the extension shaft 142 is provided at one end of the extension shaft 15. Preferably formed. As a result, the extension shaft 15 may be reciprocated forward and backward by the limit length of the extension shaft 142 to adjust the extension of the power unit 1.

The control module 2 is a means for controlling the power unit 1 for the purpose of adjusting the rotation direction and the rotation speed of the processing member g. As shown in FIG. 2, the second body ( 6) a buriedly coupled to one side, the power switch 21 to enable the drive motor 11, the switching switch 22 to convert the rotational direction of the motor shaft 111 to forward and reverse, A jog shuttle 23 for adjusting the rotational speed of the motor shaft 111 stepwise is provided.

The first joint body (3), the drive motor (11) by varying the traveling direction of the linkage shaft (14) in cooperation with the drive shaft 12 to the axis of the first link gear (13) As a means for diversifying the transmission direction of the power transmitted from the, the upper end and the horizontal end 311 may be provided through and coupled to the drive shaft 12 to approach the rear end of the first gear 121, respectively. A first hinge bracket 31 having a " " shape structure, a guide block 32 that can be assembled to be moved forward and backward in a center portion of each of the horizontal ends 311, and the first link gear. (13) and the guide block 32 and one end of the holding pipe of the first body 5 to be described later in succession to fix the position of the first link gears 13 and the rotation of the interlock shaft 14 The temporary embedded in each of the first hinge shaft 33 and the horizontal end 311 as a reference It is composed of an elastic spring 34 to be assembled between one inner wall surface of the horizontal end 311 and one outer wall surface of the guide block 32 in order to exhibit the one-way mobility of the id block 32.

On the other hand, at the center of each of the horizontal end 311, a block buried hole (311a) for embedding the guide block 32 is formed through.

In addition, a female gear 311-1 is formed at an inner edge of each of the horizontal ends 311 so that the interlocking shaft 14 may have a stepwise change of direction with respect to the first hinge shaft 33. It is.

In addition, one end of the guide block 32 and one end of the buried hole (311a), the first spring receiving groove (3b) and the second spring receiving groove which can be fitted to both ends of the elastic spring 34 a predetermined depth The grooves 311a-1 are formed to face each other.

The second joint body 4 is configured to divert the direction of travel of the spindle 17, which cooperates with the linkage shaft 14, to the axis of the second link gear 16 so as to divert from the linkage shaft 14. As a means for diversifying the transmission direction of the transmitted power, as shown in Figure 6, the through-coupled to the spindle 17 to approach the rear end of the rotary gear 171, the horizontal end 411 And a second hinge bracket 41 having a "" -shaped structure so as to be provided respectively, and a guide block 42 which is assembled to be able to move forward and backward in a state where each of the horizontal ends 411 is buried. Fixing the position of the second link gears 16 and the spindle by successively passing through the second link gear 16 and the guide block 42 and one end of the casing pipe of the first body 5 to be described later. Each of the second hinge shaft 43, which is the rotational reference of (17), and the horizontal end 411 described above. In order to achieve one direction mobility of buried the guide block 42 is composed of an elastic spring 44 to-fit assembly between one side of the outer surface of the can critically 411, the inner wall surface and the guide block 42, one side of the.

On the other hand, at the center of each of the horizontal end 411, a block buried hole 411a for embedding the guide block 42 is formed through.

At the inner edge of each of the horizontal stages 411, a female gear 411-1 is formed to allow the interlocking shaft 14 to be stepwise changed based on the second hinge axis 43. It is.

In addition, at one end of the guide block 42 and at one end of the block-filling hole 411a, the first spring receiving groove 4b and the second spring receiving groove which can fit both ends of the elastic spring 44 to a predetermined depth. The grooves 411a-1 are formed to face each other.

The first body 5 is a part of the drive shaft 12 and the spindle 17 of the power unit 1, and the first and second link gears 13, 16 and the interlock shaft 14. And it is a housing (Housing) to accommodate the extension shaft 15, as shown in Figures 4 to 6 and 8 and 9, the hinge hinge on one side of the first hinge bracket 31 while the inside Cylindrical holding pipe 51 to be embedded in the interlocking shaft 14 and the assembly form to cover a portion of the holding pipe 51 to form an inner side of the extension shaft 15 together with the inner acceptance Casing pipe 52 for setting the inclination angle of the processing member (g) radially by the twisting action (Twist) action while allowing the extension of the power unit (1) by sliding to advance, and the The first hinge bracket 31 and one side of the holding pipe 51 at the same time To surround the first protection cover 53 and the casing pipe 52 and the second the second protective cover (54) being able to surround the hinge bracket 41. At the same time, it consists of a single assembly.

On the other hand, at one end of the holding pipe 51, the first hinge shaft 33 is successively coupled through the overlap arrangement in close contact with the inner surface of each of the horizontal ends 311 of the first hinge bracket 31. In addition, the first hinge reference piece 512 extending to the upper and lower sides of the first hinge shaft 33 to change the traveling direction of the linkage shaft 14 is formed.

In addition, the second hinge shaft 43 is successively coupled to one end of the casing pipe 52 by an overlapping arrangement in close contact with the inner surface of each of the horizontal ends 411 of the second hinge bracket 41. In addition, the second hinge reference piece 522 is formed to extend the upper and lower, which can be made to change the direction of the spindle 17 on the basis of the second hinge axis (43).

On the other side of the holding pipe 51 is formed a reduced outer diameter portion 511 to be inserted into a certain depth in close contact with the inside of the casing pipe 52, the inside of the casing pipe 52, the reduced outer diameter portion 511 ) Is further provided with an extension inner diameter portion 521 that can accommodate.

In addition, the outer circumference of the reduced outer diameter portion 511 is formed in the circumference of the predetermined circumference in the longitudinal direction in the circumference direction for limiting the groove 511a for advancing the casing pipe 52 and setting the maximum movement distance. The inner surface of the inner diameter portion 521 is fitted into the limiting circumferential groove 511a to limit the moving range of the casing pipe 52 and the strip-shaped stop protrusion 521-1 for preventing indiscriminate separation of one portion of the inner surface. Protruding to.

In addition, the fixed wrench bolt 523 for fastening the flow from the holding pipe 51 is penetrated at the front end of the casing pipe 52 by the expansion inner diameter portion 521 side. This is preferred.

Meanwhile, second shaft holes 512a and 522a which allow the first and

second hinge shafts

33 and 43 to be inserted into the central portions of the first and second hinge reference pieces 512 and 522 are provided. It is penetrated.

In addition, an outer end surface of each of the first and second hinge reference pieces 512 and 522, as shown in FIG. 6, an arm gear 311-1 of the first and second hinge brackets 31 ( 411-1), respectively, are provided with male gears 512-1 and 522-1, which enable stepwise adjustment of the direction of movement of the interlock shaft 14 or the spindle 17 by gear engagement. .

The first protective cover 53 and the second protective cover 54, as shown in Figure 6 and 10a to 12b, the upper cap 531, 541 and the lower cap (up and down assembly structure) 532 and 542, but the first and second cutouts (531a) inward in a certain range in the front junction to prevent interference with the direction change of the drive shaft (12) or the spindle (17). 532a, 541a, and 542a are formed, respectively.

In addition, the driving shaft (3) is provided inside the first and

second cutouts

531a, 532a, 541a, and 542a of the upper caps 531, 541 and lower caps 532, 542, respectively. 12) or shielding bands 533 and 543 for preventing internal exposure during rotation of the spindle 17 are further padded together.

To this end, each of the upper caps 531, 541 and lower caps 532, 542, the first guide to fit the upper and lower ends of the shielding bands 533, 543 along their inner surface The rails 531-1, 532-1 and the second guide rails 541-1 and 542-1 are preferably formed.

On the other hand, through the through holes 533a and 543a through which the drive shaft 12 and the spindle 17 can be inserted into the central portions of the shielding bands 533 and 543, the drive shaft ( 12) and the spindle 17, the sliding movement is performed along the first and second guide rails (531-1) (532-1) (541-1) (542-1).

The second body 6, together with the intrinsic acceptance of the drive motor 11 and the drive shaft 12 to allow the operator to grab by hand for use of the hand grinder A according to the present invention. As shown in FIG. 5, the driving case 11 and the holding shaft 12 may be internally assembled while being gripped by a hand so as to be easily gripped by hand, and the holding case ( It is preferable that the assembly structure of the case cap 62 to seal the opening of the 61.

On the other hand, the through circumference portion of the case cap 62 surrounding the drive shaft 12 is in close contact with the bottom surface of the first cutouts 531a and 532a of the upper and lower caps 531 and 532. As the protrusion is formed, a rectangular guide protrusion 621 is formed to protrude to prevent the rotation of the holding case 61 including the driving motor 11.

The gripper 7 is for the operator to control the first body 5 with the other hand that does not hold the base housing 61 of the second body 6, as shown in FIG. 14. In addition, the handle 71 facilitated by the human hand and the handle 71 is positioned around the casing pipe 52, while the angle and position are varied through 360 ° rotation and forward and backward movement therefrom. It is composed of a fixed ring 72 that can be set.

At one end of the handle 71, in addition to penetrating a portion of the fixing ring 72, the locking screw 711 for preventing the flow while pressing the outer surface of the casing pipe 52 further protrudes It is.

In addition, it is preferable that the buffer pad 721 made of a soft synthetic resin material is further attached and coupled to the entire inner diameter surface of the fixing ring 72 to reduce frictional force with the outer surface of the casing pipe 52.

[Correction under Rule 91 13.05.2010]
For reference, FIG. 21 is a cross-sectional view showing the main structure of the multi-directional articulated hand grinder according to the present invention. The other configuration of the multi-directional articulated hand grinder (A) of the present invention will be described below.

[Correction under Rule 91 13.05.2010]
As shown in FIG. 21, a mounting hole 51a capable of penetrating the grinder spindles 810 of the existing hand grinder 800 and a receiving space 51 'extending downward from the mounting hole 51'a. b) to achieve another type of holding pipe 51 'structure.

In addition, the fixing protrusion 51'-1 which is fitted into the rim groove 801 of the hand grinder 800 on both sides of the upper circumferential inner surface of the holding pipe 51 'through which the mounting hole 51'a is formed. And a binding member 51'-2 which is assembled to the opposite sidewalls of the fixing protrusion 51'-1 and moved forward and backward in the form of protruding and buried by clamping or releasing using a separate tool.

In addition, while the input hole 18a into which the grinder spindles 810 penetrated into the mounting hole 51'a can be inserted, is vertically penetrated, the interlocking gear 141 interlocks with the interlocking gear 141. It further comprises a drive gear (18).

Here, the drive motor 11 and the drive shaft 12 of the power unit 1 and the first gear 121, the plurality of first link gear 13, the second body 6 and the control module The configuration of (2) is omitted.

On the other hand, the inner surface of the injection hole (18a), it is preferable that the urethane bushing (Bushing, 181) is further attached to have a cushioning force and a precise fastening force when the grinder spindle 810 is inserted.

Accordingly, the drive gear 18 is rotated at the same time as the grinder spindles 810 of the hand grinder 800 rotate, and the interlocking gear 141 engages with the interlocking shaft 141. Will be enabled.

Reference numeral (b) denotes a plurality of bearings for solid assembly fixing and smooth rotational driving of the drive shaft super gear first and second hinge interlocking gear interlocking shaft extended shaft driven gear rotating gear spindles, and (g) (T) is a fixing bolt for assembling and fixing the first and second protective covers to the holding pipe and the extension shaft, and (p) is the first processing member. , A plurality of assembly pins for the purpose of assembling and combining two body parts.

Referring to the operation of the multi-directional refractive hand grinder (A) according to the present invention having the configuration as described above in detail as follows.

First, as shown in FIG. 4, the processing member g, which is used for processing a workpiece, such as a grinding wheel or a circular saw, is mounted on the tip of the spindle 17 of the power unit 1.

Next, considering the operation of the workpiece or to determine the angle of the handle 71 of the gripper 7 and the position of the fixing ring 72 according to the operator, as shown in Figure 14, the first handle The locking ring 72 is released from the casing pipe 52 by releasing the locking screw 711 by turning the counterclockwise 71.

Thereafter, the fixing ring 72 is moved to an appropriate position, the handle 71 is set at a desired angle, and the locking screw 711 is turned clockwise to tighten the casing pipe 52 again by tightening. So that the retaining ring 72 does not flow.

In this state, the worker grasps the holding case 61 of the second body 6 with one hand, grasps the handle 71 with the other hand, and finishes the preparation of the workpiece for woodworking. All.

Subsequently, power is supplied to the driving motor 11 by operating the power switch 21 of the control module 2 so that the motor shaft 111 of the driving motor 11 rotates, thereby causing the motor shaft 111 to rotate. ) And the first transmission gear 121 rotates at the same time by interlocking with the driving shaft 12 assembled.

Subsequently, a plurality of the first link gears 13 engaged with the first gear 121 are interlocked, and the interlocking shafts are interlocked with the interlocking gears 141 engaged with the other side of the first link gear 13. (14) starts co-rotation drive.

In addition, the plurality of second link gears 16 and the rotating gears are rotated by the extension shaft 15 axially coupled to the other side of the interlocking shaft 14 and the driven gear 141 assembled to one side thereof. 171 also through the rotation of the spindle 17 by interlocking, it is possible to perform the work of the workpiece using the machining member (g) mounted to the end of the spindle 17.

In such a process, in order to process a difficult workpiece such as an inclined curved surface, as shown in FIG. 9, the second hinge bracket 41 is pushed out by pulling the spindle 17 outward. The rotating gear 171 is spaced apart from the two link gear 16.

[Correction under Rule 91 13.05.2010]
10 and 11, the male gear 522-1 of the female gear 411-1 and the second hinge reference piece 522 as the second hinge bracket 41 advances. By being disengaged from each other, the rotation direction of the spindle 17 can be freely switched in various directions.

[Correction under Rule 91 13.05.2010]
Then, as shown in FIGS. 12 to 13, the second hinge bracket 41 is rotated to the left or right with respect to the second hinge shaft 43 while keeping the spindle 17 continuously. When the spindle 17 is released after the angle is formed, the second hinge bracket 41 is rotated by the restoring action close to the second hinge axis 43 by the repulsive force of the elastic spring 44. As the gear 171 meshes with the second link gears 16 again, the female gear 411-1 also meshes with the male gear 522-1, and thus the direction in which the spindle 17 travels. The power can be continued even in the state of being converted to the refractive state as shown in FIG.

[Correction under Rule 91 13.05.2010]
In addition, the second link gear by pulling the drive shaft 12 after grasping the holding case 61 of the second body 6 as in the direction change method of the spindle 17 described above. While separating the first hinge bracket (31) from the (13) and at the same time the male gear 311-1 of the first hinge bracket 31 and the male gear (512-) of the first hinge reference piece 512 1) By disengaging the state of engagement with each other, the traveling direction of the holding pipe 51 including the linkage shaft 14 can also be used in various conversion to the refractive structure as shown in Figures 17 and 18.

On the other hand, as shown in Figure 8, the wrench bolt 523 is released to allow the holding pipe 51 and the casing pipe 52 to form a loose assembly state between each other, and then the operator 52) to extend the overall length of the hand grinder A according to the invention.

[Correction under Rule 91 13.05.2010]
At the same time, as shown in FIG. 8, the casing pipe 52 is rotated by twisting the casing pipe in the longitudinal direction to rotate the second joint body 4 and the second joint body by the simultaneous rotation of the second hinge reference piece 522. By allowing the second protective cover 54 to rotate together, the inclination angle of the spindle 17 using the second protective cover 54 can be variously set radially. Therefore, it is possible to easily machine even the deep inner surface of the workpiece from any angle.

In this case, when the casing pipe 52 is pulled as described above, the stop protrusion 521-1 protruding from the expansion inner diameter part 521 of the casing pipe 52 is different from the restriction circumferential groove 511 a. By being in close contact with the end, the maximum elongation length of the casing pipe 52 is determined and indiscriminate separation can be prevented.

[Correction under Rule 91 13.05.2010]
As shown in FIG. 20, when used not only in the above-described woodworking field but also in various other fields, the processing member g is not provided with a grinding wheel or a circular saw, but a hole processing of a metal plate or various articles. It is possible to use a variety of such as industrial power tools or medical power tools without being limited to a specific field such as using a drill chuck equipped with a drill for mounting on the spindle (17).

As described above, the present invention has been described in detail by using a preferred embodiment, but the scope of the present invention is not limited to the specific embodiment, it should be interpreted by the appended claims. In addition, those of ordinary skill in the art that various modifications can be made without departing from the scope and spirit of the present invention.

Claims

A power unit for rotational driving of the machining member mounted at one end for the purpose of workpiece machining;

A control module configured to control rotation of the processing member and control the number of rotations by controlling the power unit;

A first joint body and a second joint body for varying the machining angle of the workpiece by changing the moving direction of the power unit;

A first body configured to adjust an interval between the first and second joint bodies and an angle of the processing member together with an internal assembly of a part of the power unit;

A second body for internally accommodating another part of the power unit and allowing an operator to grab it by hand; And,

And a gripper capable of freely setting a holding angle and a position of the other hand in an assembled state on the outside of the first body.
The method of claim 1,

The power unit, the drive motor having a motor shaft that is rotated by the power supply;

A drive shaft in which the motor shaft is rotated together by being assembled and coupled to one end, and the first gear which is simultaneously rotated at the other end is axially coupled to the other end;

A plurality of first link gears which rotate in coordination while being respectively engaged with upper and lower portions of the first gear to form an intersecting shaft with the driving shaft;

An interlocking shaft which is disposed on the same axis as the driving shaft and is interlocked with the first link gears while being interlocked with the first link gears;

An extension shaft in which a single gear structure extends in length by being assembled with the other end of the interlocking shaft and coupled with the other joint;

A plurality of second link gears which pivot in rotation while being engaged with upper and lower portions of the driven gear so as to form an intersecting shaft with the extension shaft;

Rotating gear which is co-rotating and driven in simultaneous engagement with the second link gears is axially coupled to one end, and the other end is composed of a spindle exposed to the outside of the first body so as to mount and mount the processing member. Multi-directional articulated hand grinder.
The method of claim 1,

The gripping member, the handle is easy to impart the noise with the hand of a person,

The handle is positioned around the first body, while the first body is rotated 360 degrees around the axis and the front and rear movement through a multi-directional characterized in that it consists of a fixed ring that can be set in various ways Articulated hand grinder.
The method of claim 2,

The second body, and the gripping case is formed in a cylindrical shape to grip the drive motor and the drive shaft by hand, for internal assembly;

Multi-directional articulated hand grinder, characterized in that the assembly structure of the case cap that can seal the opening of the holding case.
The method of claim 3,

At one end of the handle, the multi-directional articulated hand grinder, characterized in that the locking screw is further protruding to prevent the flow of the fixing ring by pressing the outer surface of the first body.
The method of claim 3,

On the inner diameter surface of the fixing ring, a multi-directional articulated hand grinder, characterized in that the shock absorbing pad for further reducing the friction force with the outer surface of the first body.
The method of claim 4, wherein

The first joint body is coupled to the driving shaft so as to be close to the rear end of the first gear, the first hinge bracket made of a "" shaped structure so that the upper and lower horizontal ends, respectively, and;

A guide block which is assembled to be moved forward and backward in a buried state at each center of the horizontal end;

A first hinge shaft serving as a reference for fixing the positions of the first link gears and a rotational reference of the linkage shaft by sequentially passing through the first link gear, the guide block, and one end of the holding pipe of the first body;

Multi-directional articulated hand grinder, characterized in that composed of an elastic spring fitted between the inner wall surface of one side of the horizontal end and one outer wall surface of the guide block.
The method of claim 7, wherein

The second joint body is coupled to the spindle so as to be close to the rear end of the rotating gear, the second hinge bracket made of a "" shaped structure so that the horizontal end is provided on the upper and lower, respectively;

A guide block which is assembled to be moved forward and backward in a buried state at each center of the horizontal end;

A second hinge shaft which is fixed to the position of the second link gears and a rotational reference of the spindle by successively passing through the second link gear, the guide block, and one end of the casing pipe of the first body;

Multi-directional articulated hand grinder, characterized in that composed of an elastic spring fitted between the inner wall surface of one side of the horizontal end and one outer wall surface of the guide block.
The method of claim 8,

The first body is hinged to one side of the first hinge bracket, while the cylindrical holding pipe to be embedded therein the interlock shaft,

While forming an assembly form covering a portion of the holding pipe, the inclined angle of the processing member by the torsional action by rotating the power unit while allowing the extension of the power unit by sliding outwards with the internal acceptance of the extension shaft. Casing pipes for radial setting,

A first protective cover configured to simultaneously cover one side of the first hinge bracket and the holding pipe;

And a second protective cover configured to simultaneously wrap the casing pipe and the second hinge bracket in a single assembly.
The method of claim 9,

At one end of the holding pipe, the first hinge axis is successively coupled to each other so that the first hinge reference piece extending to the upper and lower sides of the holding pipe can be changed in the direction of movement of the interlock shaft based on the first hinge axis. Multi-directional articulated hand grinder.
The method of claim 9,

At one end of the casing pipe, the second hinge axis is successively coupled through the second hinge axis to extend the upper and lower portions of the second hinge reference piece to be able to change the direction of movement of the spindle relative to the second hinge axis. Multi-directional articulated hand grinder.
The method of claim 9,

The first protective cover and the second protective cover is made of an integrated assembly of the upper cap and the lower cap, the upper and lower assembly structure,

In order not to interfere with the direction change of the driving shaft or the spindle, first and second cutouts which are inwardly in a predetermined range are formed at the front junction, respectively.

Each of the first and second incisions is provided inside, the multi-directional articulated hand grinder, characterized in that the shielding band is further assembled to prevent the exposure of the internal space when the drive shaft or the spindle rotates.
The method of claim 11,

A female gear is formed at inner edges of each of the horizontal ends of the first and second hinge brackets,

On the outer end surface of each of the first and second hinge reference pieces, a multi-directional articulated hand, characterized in that a male gear for stepwise switching the direction of movement of the interlock shaft or the spindle by engagement with the female gear is formed. grindstone.
The method of claim 12,

The through-circumferential outer surface of the case cap is inserted in close contact with the bottom surface of the first cut-out portion of the upper and lower caps constituting the first protective cover, so as to prevent the rotation of the gripping case to form a rectangular guide stone A multidirectional articulated hand grinder, characterized in that an additional protrusion is formed.